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Low-frequency and rare exome chip variants associate with fasting glucose and type 2 diabetes susceptibility.
Nat. Commun. 6:5897 (2015)
Fasting glucose and insulin are intermediate traits for type 2 diabetes. Here we explore the role of coding variation on these traits by analysis of variants on the HumanExome BeadChip in 60,564 non-diabetic individuals and in 16,491 T2D cases and 81,877 controls. We identify a novel association of a low-frequency nonsynonymous SNV in GLP1R (A316T; rs10305492; MAF = 1.4%) with lower FG (beta = -0.09 +/- 0.01 mmol l(-1), P = 3.4 x 10(-12)), T2D risk (OR[95% CI] = 0.86[0.76-0.96], P = 0.010), early insulin secretion (beta = -0.07 +/- 0.035 pmol(insulin) mmol(glucose)(-1), P = 0.048), but higher 2-h glucose (beta = 0.16 +/- 0.05 mmol l(-1), P = 4.3 x 10(-4)). We identify a gene-based association with FG at G6PC2 (p(SKAT) = 6.8 x 10(-6)) driven by four rare protein-coding SNVs (H177Y, Y207S, R283X and S324P). We identify rs651007 (MAF = 20%) in the first intron of ABO at the putative promoter of an antisense lncRNA, associating with higher FG (beta = 0.02 +/- 0.004 mmol l(-1), P = 1.3 x 10(-8)). Our approach identifies novel coding variant associations and extends the allelic spectrum of variation underlying diabetes-related quantitative traits and T2D susceptibility.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Glucagon-like Peptide-1; Genome-wide Association; Receptor Gene; Triglyceride Levels; Germline Mutations; Insulin-resistance; Coding Variation; Glycemic Traits; Sequencing Data; Plasma-glucose
Language
english
Publication Year
2015
HGF-reported in Year
2015
ISSN (print) / ISBN
2041-1723
e-ISSN
2041-1723
Journal
Nature Communications
Quellenangaben
Volume: 6,
Article Number: 5897
Publisher
Nature Publishing Group
Publishing Place
London
Reviewing status
Peer reviewed
Institute(s)
German Center for Diabetes Reseach (DZD)
Institute of Translational Genomics (ITG)
Institute of Translational Genomics (ITG)
WOS ID
WOS:000348741700001
Erfassungsdatum
2015-03-09